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Closure cap and container

  • US 4,461,394 A
  • Filed: 10/21/1982
  • Issued: 07/24/1984
  • Est. Priority Date: 10/26/1979
  • Status: Expired due to Term
First Claim
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1. A closure cap for use with a corresponding container having a neck surrounding an opening, said neck having a screw thread on its outer surface, said screw thread of the container having alternate ridges and indentations, said cap comprising a central portion and a periphery with a flange extending from the periphery for contacting said container, said flange having a series of rounded projections on its inner surface, said projections being located adjacent to one another and overlapping slightly with one another to form a screw thread having a series of similar alternate rounded ridges and adjacent indentations, the screw thread of the cap containing sufficient alternate ridges and indentations so that when the cap and container are in a closed position, at least one ridge on one screw thread can engage an indentation on another screw thread.

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